Using NWC sub-account with route hints

[Darth-Coin]

I am testing the beta version v0.12 on a LineageOS.
I have a testing embedded node with just one channel towards Blixt node.
I've created a NWC sub-account with 100k sats budget limit.
Connected that account through NWC in another device (GrapheneOS) in Zeus and in AlbyGo and also in nostr Primal. All good, I can send payments and zaps on nostr.
The persistent mode is ON for both LND and NWC on the node.
On the node I can receive payments creating a LN invoice with route hints, selecting the single channel I have. But if I put route hints automatically, the invoice cannot be paid due to "route fail".
Now, if I want tot receive in the NWC account in another device, I do not have the option to select a channel for route hints. Also in the node, in invoice settings I could set by default top use route hints, but there's no option to select a custom route.

So now the question is how we can deal with this situation for NWC accounts that cannot control the incoming routes?
Proposed solutions:

• in the NWC account settings, add option to configure route hints for that specific account. This could be useful also if I want to open a specific channel for a specific NWC sub-account, for example I have multiple small shops, using Zeus POS with a NWC sub-account. Or maybe I want to use for a specific sub-account only a cashu mint.
• in general invoice settings add option to set a specific channel(s) for route hints, that could be taken automatically by the sub-accounts.